Method for manufacturing a container that may be dissolved naturally

ABSTRACT

A method for manufacturing a container that may be dissolved naturally is essentially used to make a natural biological fiber into a biological dissolvable container. The method especially includes adding a gum material to make the container, so that the container may be made of a harmless material (the foodstuff&#39;s formula). Thus, the container product has a lower cost of fabrication. In addition, the container product may be dissolved naturally, is heat resistant, is waterproof, does not have poison, and may be dissolved into an organic fertilizer.

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention relates to a method for manufacturing a container that may be dissolved naturally, and more particularly to a method for manufacturing a container that may be dissolved naturally, wherein the container product may be dissolved naturally, is heat resistant, is waterproof, has a light weight, does not have poison, and may be dissolved into an organic fertilizer.

[0003] 2. Description of the Related Art

[0004] A conventional container is made of a styro-foam which is made by heating and foaming the polystyrene (PS) material. The styro-foam may be made into a container such as the washless tray, bowl or the like. The styro-foam product has a light weight and is waterproof. However, the styro-foam product cannot be dissolved, and will easily release poisonous gases when being burned, thereby greatly causing an environmental pollution when the styro-foam product is disposed.

SUMMARY OF THE INVENTION

[0005] The present invention has arisen to mitigate and/or obviate the disadvantage of the conventional container made of the styro-foam product.

[0006] The primary objective of the present invention is to provide a method for manufacturing a container that may be dissolved naturally, so as to make a natural biological fiber into a biological dissolvable container. The method especially includes adding a gum material to make the container, so that the container may be made of a harmless material (the foodstuff's formula). Thus, the container product has a lower cost of fabrication. In addition, the container product may be dissolved naturally, is heat resistant, is waterproof, does not have poison, and may be dissolved into an organic fertilizer.

[0007] Another objective of the present invention is to provide a method for manufacturing a container that may be dissolved naturally, wherein the gum material and the foam agent may be mixed, so that the container has a light weight, thereby satisfying the practical requirements.

[0008] A further objective of the present invention is to provide a method for manufacturing a container that may be dissolved naturally, wherein after the harmless material (the foodstuff's formula) is mixed with the gum material and the foam agent, and is foamed by the foam agent, the container product may also be dissolved easily.

[0009] In accordance with a first aspect of the present invention, there is provided a method for manufacturing a container that may be dissolved naturally, comprising the steps of:

[0010] (a) the step of providing material: providing a natural biological fiber;

[0011] (b) the crashing and sieving step: placing the material into a crashing machine, and conveying a crashed material through a net so as to sieve the crashed material with a mesh size satisfying the requirements;

[0012] (c) the bonding and mixing step: adding a determined amount of gum into the crashed material, and fully mixing the gum with the crashed material, wherein the crashed material is about 45 to 60%, and the gum is about 55 to 40%; and

[0013] (d) the mold pressurizing and forming step: finally conveying the mixed material into a die, so that the mixed material may be pressurized and formed into a container product, wherein a heating temperature is about 60 to 220° C., and the die may then be opened, so that the container product may be removed.

[0014] In accordance with a second aspect of the present invention, there is provided a method for manufacturing a container that may be dissolved naturally, comprising the steps of:

[0015] (a) the step of providing material: providing a natural biological fiber;

[0016] (b) the crashing and sieving step: placing the material into a crashing machine, and conveying a crashed material through a net so as to sieve the crashed material with a mesh size satisfying the requirements;

[0017] (c) the bonding and mixing step: adding a determined amount of gum into the crashed material, and fully mixing the gum with the crashed material, wherein the crashed material is about 45 to 60%, and the gum is about 55 to 40%;

[0018] (d) the step of adding and mixing a foam agent: adding a determined amount of foam agent, wherein a rotation speed is about 1500 to 6000 rpm (revolutions per minute), and a mixing time is about 1 to 15 minutes; and

[0019] (e) the mold foaming and forming step: finally conveying the mixed material into a die, so that the mixed material may be heated and formed into a container product, wherein a heating temperature is about 60 to 220° C., and the die may then be opened, so that the container product may be removed.

[0020] Preferably, the natural biological fiber in the step of providing material may be various plants having long and short stems, including a straw stick, straw husk, grass, coconut husk, wheat husk, wheat stem stick, cotton stick and sorghum stick.

[0021] Preferably, the natural biological fiber in the step of providing material may be natural agricultural wastes, including the corn stick dregs, sugar can dregs, and beer dregs.

[0022] Preferably, the natural biological fiber in the step of providing material may be a starch material, including corn flour, potato flour, and bean flour.

[0023] Preferably, the gum in the bonding and mixing step is a PVA (polyvinyl acetate) gum.

[0024] Preferably, the gum in the bonding and mixing step includes a powder material of rosin, Dammar resin, Copal resin, Gelatin, and Shellac.

[0025] Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

[0026]FIG. 1 is a flow chart of a method for manufacturing a container that may be dissolved naturally in accordance with a first embodiment of the present invention; and

[0027]FIG. 2 is a flow chart of a method for manufacturing a container that may be dissolved naturally in accordance with a second embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

[0028] Referring to the drawings and initially to FIG. 1, a method for manufacturing a container that may be dissolved naturally in accordance with a first embodiment of the present invention comprises the following steps:

[0029] 1. The step 10 of providing material: providing various plants having long and short stems, including the straw stick, straw husk, grass, coconut husk, wheat husk, wheat stem stick, cotton stick, sorghum stick, bean pod or the like. Alternatively, the natural agricultural wastes may also be adopted, including the corn stick dregs, sugar can dregs, beer dregs or the like. Alternatively, the starch material may also be adopted, including the corn flour, potato flour, bean flour or the like.

[0030] 2. The crashing and sieving step 20: placing the material into a crashing machine, and conveying the crashed material through a net so as to sieve the crashed material with a mesh size satisfying the requirements. Preferably, the mesh size is about 10 to 400 meshes.

[0031] 3. The bonding and mixing step 30: adding a determined amount of PVA (polyvinyl acetate) gum into the crashed material, and fully mixing the PVA gum with the crashed material. The crashed material is about 45 to 60%, and the PVA gum is about 55 to 40%. In addition, the powder material of the rosin, Dammar resin, Copal resin, Gelatin, Shellac or the like may also be adopted to replace the PVA gum.

[0032] 4. The mold pressurizing and forming step 50: finally conveying the mixed material into a die, so that the mixed material may be pressurized and formed into a container product. The heating temperature is about 60 to 220° C. Then, the die may be opened, so that the container product may be removed.

[0033] Accordingly, the method of the present invention may in turn proceed the step 10 of providing material, the crashing and sieving step 20, and the bonding and mixing step 30, so that the natural biological fiber (the foodstuff's formula) may be made into a biological dissolvable container. Thus, the container product has a lower cost of fabrication. In addition, the container product may be dissolved naturally, is heat resistant, is waterproof, does not have poison, and may be dissolved into an organic fertilizer.

[0034] Referring to FIG. 2, a method for manufacturing a container that may be dissolved naturally in accordance with a second embodiment of the present invention comprises the following steps:

[0035] 1. The step 10 of providing material: providing various plants having long and short stems, including the straw stick, straw husk, grass, coconut husk, wheat husk, wheat stem stick, cotton stick, sorghum stick, bean pod or the like. Alternatively, the natural agricultural wastes may also be adopted, including the corn stick dregs, sugar can dregs, beer dregs or the like. Alternatively, the starch material may also be adopted, including the corn flour, potato flour, bean flour or the like.

[0036] 2. The crashing and sieving step 20: placing the material into a crashing machine, and conveying the crashed material through a net so as to sieve the crashed material with a mesh size satisfying the requirements. Preferably, the mesh size is about 10 to 400 meshes.

[0037] 3. The bonding and mixing step 30: adding a determined amount of PVA (polyvinyl acetate) gum into the crashed material, and fully mixing the PVA gum with the crashed material. The crashed material is about 45 to 60%, and the PVA gum is about 55 to 40%. In addition, the powder material of the rosin, Dammar resin, Copal resin, Gelatin, Shellac or the like may also be adopted to replace the PVA gum.

[0038] 4. The step 40 of adding and mixing a foam agent: adding a determined amount of foam agent. The rotation speed is about 1500 to 6000 rpm (revolutions per minute), and the mixing time is about 1 to 15 minutes. The foam agent may include

[0039] (azobisformamide, ABFA, azodicarbonamid, ADCA or AC). Alternatively, the foam agent may include

[0040] (P, P-Oxy-bis, OBSH, OSH). Alternatively, the foam agent may include

[0041] (N, N, Dinitroso Pentamethylene Tetramine, DPT, or DNPT).

[0042] 5. The mold foaming and forming step 60: finally conveying the mixed material into a die, so that the mixed material may be heated and formed into a container product. The heating temperature is about 60 to 220° C. Then, the die may be opened, so that the container product may be removed.

[0043] Accordingly, by adding the step 40 of adding and mixing a foam agent, the natural biological fiber (the foodstuff's formula) may be made into a biological dissolvable container. Thus, the foaming effect may save the producing material, and may enhance the heatproof and waterproof effect of the product.

[0044] While the preferred embodiment of the present invention has been shown and described, it will be apparent to those skilled in the art that various modifications may be made in the embodiment without departing from the spirit of the present invention. Such modifications are all within the scope of the present invention. 

What is claimed is:
 1. A method for manufacturing a container that may be dissolved naturally, comprising the steps of: (a) the step of providing material: providing a natural biological fiber; (b) the crashing and sieving step: placing the material into a crashing machine, and conveying a crashed material through a net so as to sieve the crashed material with a mesh size satisfying the requirements; (c) the bonding and mixing step: adding a determined amount of gum into the crashed material, and fully mixing the gum with the crashed material, wherein the crashed material is about 45 to 60%, and the gum is about 55 to 40%; and (d) the mold pressurizing and forming step: finally conveying the mixed material into a die, so that the mixed material may be pressurized and formed into a container product, wherein a heating temperature is about 60 to 220° C., and the die may then be opened, so that the container product may be removed.
 2. The method for manufacturing a container that may be dissolved naturally in accordance with claim 1, wherein the natural biological fiber in the step of providing material may be various plants having long and short stems, including a straw stick, straw husk, grass, coconut husk, wheat husk, wheat stem stick, cotton stick and sorghum stick.
 3. The method for manufacturing a container that may be dissolved naturally in accordance with claim 1, wherein the natural biological fiber in the step of providing material may be natural agricultural wastes, including the corn stick dregs, sugar can dregs, and beer dregs.
 4. The method for manufacturing a container that may be dissolved naturally in accordance with claim 1, wherein the natural biological fiber in the step of providing material may be a starch material, including corn flour, potato flour, and bean flour.
 5. The method for manufacturing a container that may be dissolved naturally in accordance with claim 1, wherein the mesh size in the crashing and sieving step is about 10 to 400 meshes.
 6. The method for manufacturing a container that may be dissolved naturally in accordance with claim 1, wherein the gum in the bonding and mixing step is a PVA (polyvinyl acetate) gum.
 7. The method for manufacturing a container that may be dissolved naturally in accordance with claim 1, wherein the gum in the bonding and mixing step includes a powder material of rosin, Dammar resin, Copal resin, Gelatin, and Shellac.
 8. A method for manufacturing a container that may be dissolved naturally, comprising the steps of: (a) the step of providing material: providing a natural biological fiber; (b) the crashing and sieving step: placing the material into a crashing machine, and conveying a crashed material through a net so as to sieve the crashed material with a mesh size satisfying the requirements; (c) the bonding and mixing step: adding a determined amount of gum into the crashed material, and fully mixing the gum with the crashed material, wherein the crashed material is about 45 to 60%, and the gum is about 55 to 40%; (d) the step of adding and mixing a foam agent: adding a determined amount of foam agent, wherein a rotation speed is about 1500 to 6000 rpm (revolutions per minute), and a mixing time is about 1 to 15 minutes; and (e) the mold foaming and forming step: finally conveying the mixed material into a die, so that the mixed material may be heated and formed into a container product, wherein a heating temperature is about 60 to 220° C., and the die may then be opened, so that the container product may be removed.
 9. The method for manufacturing a container that may be dissolved naturally in accordance with claim 8, wherein the natural biological fiber in the step of providing material may be various plants having long and short stems, including a straw stick, straw husk, grass, coconut husk, wheat husk, wheat stem stick, cotton stick and sorghum stick.
 10. The method for manufacturing a container that may be dissolved naturally in accordance with claim 8, wherein the natural biological fiber in the step of providing material may be natural agricultural wastes, including the corn stick dregs, sugar can dregs, and beer dregs.
 11. The method for manufacturing a container that may be dissolved naturally in accordance with claim 8, wherein the natural biological fiber in the step of providing material may be a starch material, including corn flour, potato flour, and bean flour.
 12. The method for manufacturing a container that may be dissolved naturally in accordance with claim 8, wherein the mesh size in the crashing and sieving step is about 10 to 400 meshes.
 13. The method for manufacturing a container that may be dissolved naturally in accordance with claim 8, wherein the gum in the bonding and mixing step is a PVA (polyvinyl acetate) gum.
 14. The method for manufacturing a container that may be dissolved naturally in accordance with claim 8, wherein the gum in the bonding and mixing step includes a powder material of rosin, Dammar resin, Copal resin, Gelatin, and Shellac.
 15. The method for manufacturing a container that may be dissolved naturally in accordance with claim 8, wherein the foam agent in the step of adding and mixing a foam agent includes


16. The method for manufacturing a container that may be dissolved naturally in accordance with claim 8, wherein the foam agent in the step of adding and mixing a foam agent includes


17. The method for manufacturing a container that may be dissolved naturally in accordance with claim 8, wherein the foam agent in the step of adding and mixing a foam agent includes 